#include "stm32f4xx_hal.h"
#include "stdio.h"
void delay_us(uint32_t t);
void dht11_init(void);
void dht11_start(void);
uint8_t dht11_response(void);
uint8_t dht11_send_byte(void);
uint8_t dht11_send_data(void);
void dht11_send(uint8_t*res);
